00:01
In this problem, we're given a frequency polygon to describe the frequency density.
00:05
So in the first row, we're just going to use the diagram that they've given us to find the midpoint and locate its frequency density.
00:14
So the first one, it looks like it's got a frequency density of 2 .5.
00:23
And the next one, it's got a frequency density of around 3 .5.
00:28
We're just looking for the midpoints here.
00:30
And then the next interval, it looks like 4 .5.
00:36
And then it looks like, i don't know, 4 .5 again.
00:43
And then 20 to 27.
00:45
That looks like 3 .5.
00:52
And then 27 to 33.
00:56
That looks like 2 .5...